JPH02200023A - Incoming call control system for mobile communication - Google Patents

Incoming call control system for mobile communication

Info

Publication number
JPH02200023A
JPH02200023A JP1017468A JP1746889A JPH02200023A JP H02200023 A JPH02200023 A JP H02200023A JP 1017468 A JP1017468 A JP 1017468A JP 1746889 A JP1746889 A JP 1746889A JP H02200023 A JPH02200023 A JP H02200023A
Authority
JP
Japan
Prior art keywords
mobile communication
mobile
communication control
mobile device
incoming call
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP1017468A
Other languages
Japanese (ja)
Other versions
JP2594146B2 (en
Inventor
Masayuki Sakamoto
坂本 正行
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP1017468A priority Critical patent/JP2594146B2/en
Publication of JPH02200023A publication Critical patent/JPH02200023A/en
Application granted granted Critical
Publication of JP2594146B2 publication Critical patent/JP2594146B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Mobile Radio Communication Systems (AREA)

Abstract

PURPOSE:To attain tracing connection, and to attain the connection even when mobile equipment moves over an area by using the incoming call transfer function of a fixed network, transferring the incoming call to a home number to a temporary number, and allowing the mobile equipment to respond to the call at the temporary number. CONSTITUTION:When mobile equipment 14 moves over a position registered area determined beforehand, it registers the position to a mobile communication system, and the system temporarily applies the number (temporary number) to call the mobile equipment in a wireless zone. The system, which has received the position registering signal from the mobile equipment 14, registers the home number on a fixed network 2 so that the incoming call to the home number may be transferred to the temporary number. When the incoming call from a telephone on the fixed network 2 side is received by the mobile equipment through the home number, the call is transferred to the temporary number. The moving communication system to have received the incoming call at the temporary number calls the mobile equipment at the temporary number. Thus even when the mobile equipment changes its position, the incoming call can be received by the tracing connection.

Description

【発明の詳細な説明】 (産業上の利用分野) 本発明は、移動機が現在位置の登録を行う移動通信方式
における着信接続制御方式に関するものである。
DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an incoming call connection control system in a mobile communication system in which a mobile device registers its current location.

(従来の技術) 着信接続制御の点から移動通信方式を分類すると、 (1)移動機への着信電話番号を固定電話のそれとは区
別できるように構成し、移動機への着信呼はこの番号に
よりまず移動網に入り、移動網内で移動機の現在位置を
調べ、現在位置の基地局まで回線を接続して移動機への
着信を行うもの(代表例は自動車電話)、 (2)移動機への着信電話番号は固定電話番号の一部を
使い(従って番号からでは固定電話か移動機電話番号か
は分からない)、固定網と移動通信システムとは加入者
線で接続され、移動機への着信呼はまずその番号に対応
する加入者線で移動通信システムに接続され、そこから
移動機への着信を行うもの、の2種類がある。
(Prior art) Mobile communication systems can be classified from the point of view of incoming call connection control: (1) The incoming telephone number to a mobile device is configured so that it can be distinguished from that of a landline telephone, and incoming calls to the mobile device are handled by this number. A device that first enters the mobile network, checks the current location of the mobile device within the mobile network, connects a line to the base station at the current location, and then receives a call to the mobile device (a typical example is a car phone). (2) Mobile The incoming telephone number to the machine uses a part of the fixed telephone number (therefore, it is not possible to tell from the number whether it is a fixed telephone number or a mobile telephone number), and the fixed network and mobile communication system are connected by a subscriber line, and the mobile terminal There are two types of incoming calls: those that are first connected to the mobile communication system via the subscriber line corresponding to the number, and then the calls are made to the mobile device.

後者の例はコードレス電話であり、固定網とは加入者線
で接続されているから極めて簡単に移動通信システムを
設置できる利点がある。
An example of the latter is a cordless telephone, which has the advantage that it is extremely easy to install a mobile communication system because it is connected to the fixed network through a subscriber line.

(発明が解決しようとする課題) しかしこのシステムでは、移動機がこの加入者線に接続
されている移動通信システム以外の場所にある他の移動
通信システムに移動している場合には着信ができない欠
点があった。コードレス電話の携帯機を別のコードレス
電話の接続装置のある場所へ持って行っても、もはやも
との番号ではそのコードレス電話は使用することはでき
ず、せいぜい持って行った先のコードレス電話の番号と
してなら使える可能性があるにすぎないのはこの例であ
る。即ち自分のコードレス電話の携帯機は自分の接続装
置との間では使えるが、他の接続装置に移動した場合に
は、自分の番号では使用できない。
(Problem to be solved by the invention) However, with this system, if the mobile device is moving to another mobile communication system in a location other than the mobile communication system connected to this subscriber line, it is not possible to receive a call. There were drawbacks. If you take your cordless phone to a location with a cordless phone connection device, you will no longer be able to use the cordless phone at the original number; In this example, it is only possible to use it as a number. In other words, the portable device of your cordless telephone can be used with your own connection device, but if you move it to another connection device, you cannot use it with your own number.

本発明の目的は固定網と加入者線で接続する移動通信シ
ステムにおいて、移動機が場所を移動した場合にも追跡
接続することにより着信を可能とする着信制御方式を提
供することにある。
SUMMARY OF THE INVENTION An object of the present invention is to provide a call termination control method in a mobile communication system connected to a fixed network through a subscriber line, which enables call termination by tracking and connecting even when a mobile device moves from place to place.

(課題を解決するための手段) 前記目的を達成するための本発明の特徴は、固定網と加
入者線で接続された移動通信制御装置が複数装置設置さ
れ、各移動通信制御装置には無線電波を送受信する基地
局装置が1つ又は複数局設置されている移動通信システ
ムにおいて、移動機は上記いづれかの移動通信制御装置
に登録され、かつそれと接続されている加入者線で規定
される番号の1つをホーム番号として持ち、移動機が上
記登録移動通信制御装置以外の移動通信制御装置のエリ
アに移動した場合には、その移動機に対してそのエリア
でのみ使用可能な臨時番号を臨時に付与し、かつこの臨
時番号は移動先の移動通信制御装置に接続されている加
入者線に対応する番号の内、他の移動機のホーム番号と
は一致しないものとし、登録移動通信制御装置では、そ
の移動機のホーム番号への呼を臨時番号への着信転送と
するよう登録し、移動機は移動先移動通信制御装置のエ
リアにいる場合に限り、臨時番号を自分への呼出し番号
とする移動通信における着信制御方式本発明は固定網と
加入者線で接続される移動通信システムにおいて、従来
は不可能であった移動機の移動に対する追跡接続を可能
とする。即ち、各移動機は特定の固定網の電話機と区別
のつかない加入者番号(ホーム番号と呼ぶ)を持ち、移
動機はあらかじめ決められた位置登録エリアを越えて移
動した場合、移動通信システムに対して位置登録を行い
、移動通信システムはこの移動機に対して、暫定的に無
線区間で移動機呼出しのための番号(臨時番号と呼ぶ)
を与え、かつこの番号は位置登録した移動通信システム
に接続されている加入者加入者線の加入者番号の1つと
する。移動機からの位置登録信号を受信した移動通信シ
ステムは、ホーム番号への着信呼を臨時番号に着信転送
するよう固定網に登録する。固定網側の電話からホーム
番号で移動機へ着信があった場合、固定網は、ホーム番
号への着信呼を臨時番号へ転送するよう登録されている
ことから呼を臨時番号に転送する。臨時番号で着信を受
けつけた移動通信システムは臨時番号で移動機を呼出す
(Means for Solving the Problems) A feature of the present invention for achieving the above object is that a plurality of mobile communication control devices connected to a fixed network through a subscriber line are installed, and each mobile communication control device has a wireless communication control device. In a mobile communication system in which one or more base stations that transmit and receive radio waves are installed, the mobile device is registered with one of the above mobile communication control devices and has a number specified by the subscriber line connected to it. If the mobile device has one of the following as its home number and moves to an area of a mobile communication control device other than the registered mobile communication control device above, a temporary number that can only be used in that area is assigned to the mobile device as a temporary number. This temporary number shall not match the home number of another mobile device among the numbers corresponding to the subscriber line connected to the mobile communication control device at the destination, and shall be assigned to the registered mobile communication control device. Then, the mobile device registers calls to its home number to be forwarded to a temporary number, and the mobile device uses the temporary number as its own calling number only when it is in the area of the destination mobile communications controller. Incoming call control system for mobile communication The present invention enables tracking connection for the movement of mobile equipment, which was previously impossible, in a mobile communication system connected to a fixed network through a subscriber line. In other words, each mobile device has a subscriber number (called a home number) that is indistinguishable from that of a specific fixed-line telephone, and when a mobile device moves beyond a predetermined location registration area, it is registered in the mobile communication system. The mobile communication system registers the location of the mobile device, and the mobile communication system provides the mobile device with a temporary number (called a temporary number) for calling the mobile device in the radio area.
and this number is one of the subscriber numbers of the subscriber line connected to the mobile communication system in which the location has been registered. The mobile communication system that receives the location registration signal from the mobile device registers with the fixed network so that incoming calls to the home number are transferred to the temporary number. When a mobile device receives a call from a telephone on the fixed network side using the home number, the fixed network transfers the call to the temporary number because the fixed network is registered to transfer incoming calls to the home number to the temporary number. The mobile communication system that receives the call at the temporary number calls the mobile device using the temporary number.

(実施例) 第1図及び第2図は本発明の詳細な説明する図であって
、1は固定電話、2は固定電話網、3.5.9は固定電
話網から切り出した加入者線、4.10は移動通信制御
装置、6.7.11.12は基地局装置、8は固定電話
網内での接続を示す固定電話網内接続回線、13は移動
通信制御装置間制御回線、14は移動機、15は交換装
置、16は中央制御装置、17はホームメモリである。
(Example) Figures 1 and 2 are diagrams explaining the present invention in detail, in which 1 is a fixed telephone, 2 is a fixed telephone network, and 3.5.9 is a subscriber line cut out from the fixed telephone network. , 4.10 is a mobile communication control device, 6.7.11.12 is a base station device, 8 is a fixed telephone network connection line indicating connection within the fixed telephone network, 13 is a control line between mobile communication control devices, 14 is a mobile device, 15 is a switching device, 16 is a central control device, and 17 is a home memory.

第2図は移動通信制御装置4の構成例を示したものであ
るが、lOも同様の構成である。移動通信システム加入
者は固定電話と区別のない番号を持っており、移動通信
システムにはその番号の加入省線が引き込まれている。
FIG. 2 shows an example of the configuration of the mobile communication control device 4, and IO has a similar configuration. Mobile communication system subscribers have numbers that are indistinguishable from fixed telephone numbers, and the mobile communication system has a subscriber line connected to that number.

移動通信制御装置にはホームメモリと呼ばれる加入者情
報の記憶装置が設置されている。ホームメモリには、そ
の番号を持つ移動様が確かに移動通信システムに加入し
ていることを確認すること、その加入者に対する通信料
金の記録に加えて、位置登録情報の記憶の機能がある。
A mobile communication control device is equipped with a storage device for subscriber information called a home memory. The home memory has the functions of confirming that the mobile person with the number is indeed subscribed to the mobile communication system, recording communication charges for that subscriber, and storing location registration information.

例えば移動機14が加入者線3に対応する番号であると
すると移動機14の加入者情報は移動通信制御装置4の
ホームメモリ17に記録されている。
For example, if the mobile device 14 has a number corresponding to the subscriber line 3, the subscriber information of the mobile device 14 is recorded in the home memory 17 of the mobile communication control device 4.

移動機14が移動通信制御装置4に接続されている6−
−−−7のいづれかの基地局のエリアにいる場合には移
動機14の位置登録情報には移動通信制御装置4のエリ
アにいることが登録されている。固定電話1から移動機
14に接続要求があった場合、固定電話網2は固定電話
1がダイヤルした移動通信制御装置14の電話番号(ホ
ーム番号)から加入者線3への着信制御動作を開始する
。移動通信制御装置4は移動機14の位置登録情報が自
エリアであることから移動通信制御装置4に接続されて
いる基地局6−−−−7から移動機14のホーム番号又
はそれを無線区間用に変換した番号で一斉呼出しを行い
、いづれかの基地局からの電波でこれを受信すると移動
機は応答信号を返し、この基地局を介して通信路を構成
し、通信を開始する。
6- in which the mobile device 14 is connected to the mobile communication control device 4;
---7, the location registration information of the mobile device 14 registers that it is in the area of the mobile communication control device 4. When there is a connection request from the fixed telephone 1 to the mobile device 14, the fixed telephone network 2 starts an incoming call control operation to the subscriber line 3 from the telephone number (home number) of the mobile communication control device 14 dialed by the fixed telephone 1. do. Since the location registration information of the mobile device 14 is in its own area, the mobile communication control device 4 receives the home number of the mobile device 14 from the base station 6--7 connected to the mobile communication control device 4 or the home number of the mobile device 14 in the wireless section. When the mobile device makes a simultaneous call using the converted number and receives it via radio waves from one of the base stations, the mobile device returns a response signal, establishes a communication path via this base station, and starts communication.

移動機14が移動通信制御装置4以外の例えば10のエ
リアに移動した場合の動作を以下に説明する。
The operation when the mobile device 14 moves to, for example, 10 areas other than the mobile communication control device 4 will be described below.

基地局6.7からは移動通信制御装置4のエリアである
ことを示す情報が、また基地局11.12からは10の
エリアであることを示す情報が送出されている。移動機
14はこの情報により自分のホームメモリのある4のエ
リアでなく、10のエリアに移動したことを知る。移動
機14はこれにより自動的に、11−−一−12のいづ
れかの基地局を介して10のエリアに自分のホーム番号
と共に移動した旨の位置登録信号を10に送出する。I
Oは移動機14に対して、10のエリアにいる場合にの
み移動機14を呼び出す番号である臨時番号を14に通
知する。臨時番号は固定網から10に接続されている加
入者線の内、移動機のホーム番号に対応するもの以外を
割当てる。さらにIOは位置登録してきた移動機のホー
ム番号から、その移動機のホームメモリが4にあること
を知り、制御回線13を介して4に対して、移動機14
が自エリアに位置登録してきたこと、及び14に与えた
臨時番号を通知する。4は14の加入者情報に対応する
ホームメモリの部分に臨時番号を記憶する。4は14の
加入者線である3から、固定網に対して3への着信呼を
前述の臨時番号に転送するよう指示する。この転送は固
定網で実現されている着信転送機能を利用することによ
り実現できる。
The base station 6.7 sends information indicating that the area is the mobile communication control device 4, and the base station 11.12 sends information indicating that the area is the 10 area. Based on this information, the mobile device 14 knows that it has moved to area 10 instead of area 4 where its home memory is located. The mobile device 14 thereby automatically sends to 10 a location registration signal indicating that it has moved to the 10 area together with its own home number via any of the base stations 11--1-12. I
O notifies the mobile device 14 of a temporary number that is a number to call the mobile device 14 only when the mobile device 14 is in the area of 10. The temporary number is assigned to a subscriber line connected to 10 from the fixed network other than the one corresponding to the home number of the mobile device. Furthermore, the IO learns from the home number of the mobile device that has registered its location that the home memory of that mobile device is in 4, and sends a message to 4 via the control line 13 to the mobile device 14.
14 has registered its location in its own area, and the temporary number given to 14. 4 stores a temporary number in the portion of the home memory corresponding to the subscriber information of 14. 4 instructs the fixed network from 3, which is the subscriber line of 14, to transfer incoming calls to 3 to the above-mentioned temporary number. This transfer can be achieved by using the call transfer function implemented in fixed networks.

この状態で移動機14に対して着信があった場合、1か
らのダイヤル番号(14のホーム番号)で固定網は加入
者線3への着信の代わりに、着信転送先として指定され
ている臨時番号に対応する加入者線9を介してlOに呼
を転送する。 10はそれに接続されている基地局11
−−−−12から臨時番号又はそれを無線区間用に変換
した番号で一斉呼出しを行う。14はlOのエリアにい
る場合に限り位置登録したときにlOから通知された臨
時番号を記憶しており、この番号で呼ばれた場合には応
答信号を返し、11−−−−12のいづれか10を介し
て通信回線が構成される。
When a call is received to the mobile device 14 in this state, the fixed network is dialed from 1 (home number 14) and instead of receiving the call to the subscriber line 3, the call is forwarded to the temporary telephone number specified as the call forwarding destination. The call is transferred to the IO via the subscriber line 9 corresponding to the number. 10 is the base station 11 connected to it
---- From 12, a temporary number or a number converted from the temporary number for the wireless section is used to make a simultaneous call. 14 memorizes the temporary number notified by IO when you register your location only when you are in the area of IO, and when called with this number, it returns a response signal and calls any of 11----12. A communication line is configured via 10.

この臨時番号はlOのエリア内にいる場合にだけ有効で
あり、lOから他の移動通信制御装置のエリアに移動し
た場合には、その移動通信制御装置の加入者線の内、移
動機のホーム番号に対応するもの以外から改めて選んで
割当てられる。
This temporary number is valid only when you are within the area of the IO, and when you move from the IO to the area of another mobile communication controller, the temporary number You can select and allocate a new number from among those that do not correspond to the number.

以上の説明では、加入者線の1つに固定網の番号が1つ
対応する例で説明したが、ダイヤルインPBXのように
加入者線と番号とが複数対複数の対応関係にある場合に
も本発明は適用可能である。
In the above explanation, one fixed network number corresponds to one subscriber line. The present invention is also applicable.

(発明の効果) 以上説明したように、固定網の着信転送機能を利用して
、ホーム番号への着信呼を臨時番号に転送し、移動機は
この臨時番号で呼び出された場合に応答することにより
、追跡接続が可能となり、移動機がエリアを移動した場
合にも、接続が可能となる利点がある。
(Effects of the Invention) As explained above, by using the call transfer function of the fixed network, incoming calls to the home number are transferred to a temporary number, and the mobile device answers when called by this temporary number. This has the advantage that tracking connections are possible, and connections can be made even when the mobile device moves from one area to another.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本発明におけるシステム構成の説明図、第2図
は第1図の移動通信制御装置の構成例である。 1−一一一固定電話、2−一一一固定電話網、3.5.
9−−−一加入省線、 4、10−−−一移動通信制御装置、 6、7.11.12−−−一基地局装置、8−−−一固
定電話網内接続回線、 13−−−一移動通信制御装置間制御回線、14−−−
一移動機、15−−−一交換装置、16−−−−中央制
御装置、 17−−−−ホームメモリ。
FIG. 1 is an explanatory diagram of a system configuration according to the present invention, and FIG. 2 is an example of the configuration of the mobile communication control device of FIG. 1. 1-111 fixed telephone, 2-111 fixed telephone network, 3.5.
9----1 subscriber saving line, 4, 10----1 mobile communication control device, 6, 7.11.12----1 base station device, 8----1 fixed telephone network internal connection line, 13- --Control line between one mobile communication control device, 14---
one mobile station, 15---one switching device, 16---central control unit, 17---home memory.

Claims (1)

【特許請求の範囲】[Claims] 固定網と加入者線で接続された移動通信制御装置が複数
装置設置され、各移動通信制御装置には無線電波を送受
信する基地局装置が1つ又は複数局設置されている移動
通信システムにおいて、移動機は上記いづれかの移動通
信制御装置に登録され、かつそれと接続されている加入
者線で規定される番号の1つをホーム番号として持ち、
移動機が上記登録移動通信制御装置以外の移動通信制御
装置のエリアに移動した場合には、その移動機に対して
そのエリアでのみ使用可能な臨時番号を臨時に付与し、
かつこの臨時番号は移動先の移動通信制御装置に接続さ
れている加入者線に対応する番号の内、他の移動機のホ
ーム番号とは一致しないものとし、登録移動通信制御装
置では、その移動機のホーム番号への呼を臨時番号への
着信転送とするよう登録し、移動機は移動先移動通信制
御装置のエリアにいる場合に限り、臨時番号を自分への
呼出し番号とすることを特徴とする移動通信における着
信制御方式。
In a mobile communication system in which a plurality of mobile communication control devices are installed that are connected to a fixed network by subscriber lines, and each mobile communication control device is installed with one or more base station devices that transmit and receive radio waves, The mobile device is registered with one of the above mobile communication control devices and has one of the numbers specified in the subscriber line connected thereto as a home number,
When a mobile device moves to an area of a mobile communication control device other than the registered mobile communication control device, a temporary number that can only be used in that area is temporarily assigned to the mobile device,
Also, this temporary number shall not match the home number of another mobile device among the numbers corresponding to the subscriber line connected to the mobile communication control device at the destination, and the registered mobile communication control device will The feature is that calls to the home number of the mobile device are registered to be forwarded to a temporary number, and the mobile device uses the temporary number as the calling number only when it is in the area of the destination mobile communication control device. An incoming call control method for mobile communications.
JP1017468A 1989-01-30 1989-01-30 Incoming call control method in mobile communication Expired - Lifetime JP2594146B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1017468A JP2594146B2 (en) 1989-01-30 1989-01-30 Incoming call control method in mobile communication

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1017468A JP2594146B2 (en) 1989-01-30 1989-01-30 Incoming call control method in mobile communication

Publications (2)

Publication Number Publication Date
JPH02200023A true JPH02200023A (en) 1990-08-08
JP2594146B2 JP2594146B2 (en) 1997-03-26

Family

ID=11944852

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1017468A Expired - Lifetime JP2594146B2 (en) 1989-01-30 1989-01-30 Incoming call control method in mobile communication

Country Status (1)

Country Link
JP (1) JP2594146B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02294197A (en) * 1989-05-09 1990-12-05 Nec Corp Private mobile communication system and wide area mobile communication system

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62114338A (en) * 1985-11-13 1987-05-26 Nec Corp Method for storing terminal in radio key telephone system and device used in it
JPS63160434A (en) * 1986-12-24 1988-07-04 Nippon Telegr & Teleph Corp <Ntt> Wide area portable telephone system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62114338A (en) * 1985-11-13 1987-05-26 Nec Corp Method for storing terminal in radio key telephone system and device used in it
JPS63160434A (en) * 1986-12-24 1988-07-04 Nippon Telegr & Teleph Corp <Ntt> Wide area portable telephone system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02294197A (en) * 1989-05-09 1990-12-05 Nec Corp Private mobile communication system and wide area mobile communication system

Also Published As

Publication number Publication date
JP2594146B2 (en) 1997-03-26

Similar Documents

Publication Publication Date Title
US5259017A (en) Cordless telephone system with a private automatic branch exchange
JPH05506974A (en) Apparatus and method for connecting calls to mobile telephone subscribers
EP0630166A2 (en) Mobile communication system making use of ISDN switched network
EP0696153B1 (en) Communication method commonly using mobile communication terminal and communication system controller used therefor
JP3221975B2 (en) Mobile communication system, mobile communication control device, and mobile communication control method
JP2523297B2 (en) Mobile wireless communication system
JP2008219826A (en) Wireless communication system, wireless terminal, and method of re-connection during communication
JP2600513B2 (en) Mobile phone system to select bypass line
KR100323757B1 (en) Method of operating termination call service to nearest agent in mobile communication
JPH02200023A (en) Incoming call control system for mobile communication
JPS5881352A (en) Wide band portable telephone system
JPH0215722A (en) Communicating channel switching system
JP2000349911A (en) Mobile telephone system and method for automatically switching terminal of incoming call destination
JPH05328429A (en) Service control system during roaming
JP2939367B2 (en) Call transfer method in mobile communication
JPS62114338A (en) Method for storing terminal in radio key telephone system and device used in it
JPH02312494A (en) Radio telephone transfer setting system
JPH0787554A (en) Location tracking system for mobile station
JPH04287436A (en) Mobile communication system
KR100260093B1 (en) Method for reporting handoff in a personal communication exchange system
JPS63260327A (en) Mobile communication system
KR100260092B1 (en) Method for disposing of three way call after handoff in a personal communication exchange system
JPH11215239A (en) Telephone communication system, exchange system and telephone call transfer method
JP3138984B2 (en) Mobile call connection method
JPH03283898A (en) Mobile radio system